Oil-ring



W. H. KEMPTON.

OIL RING.

' APPLICATION man SEPT. 3. m9.

Patented July 12, 1921.

rye, i515.

WIT ESSES: INVENTOR 5g; 4 ,2 Wflarofi/Ew fm.

k ATTORNEY UNITED I STATES J TOFFICE.

WILLARD H. KEMPTON, or WILKINsBURG, PENNSYLVANIA, ASSIGNOR. TO wns'rme HOUSE ELECTRIC, & MANUFACTURING COMPANY, A CORPORATION. or rENNsYL- VANIA.

OIL-RING.

To aZZ whom it may concern:

Be it known that I, WILLARD H. KEMP- TON, a citizen of the United States, and a resident of l/Vilkinsburg, in the county of Allegheny and State of Pennsylvania, have invented a new and useful Improvement in Oil-Rings, of which the following is a specifieation. I

My invention relates to oil rings and it has, for its primary object, the provision of oil rings formed of a moldable composition reinforced by a fibrous material. in such manner as to insure a strong and durable product.

It has been customary, heretofore, to employ oil rings formed of various metals, some of which are relatively expensive and also result in heavier devices than are demanded by the functions to be performed. Furthermore, metallic rings are objectionable for the reason that they must be care fully handled before they are disposed 1n their operative positions because some of them are brittle and are, therefore, easily broken when subjected to shocks, while others, formed of other metals, may become rusted, if exposed to the weather.

One object of my invention resides in the provision of an oil ring which is unaffected by moisture, oils, weak acids, alkalis and relatively wide temperature changes.

Another object of my invention is the construction of oil rings which shall be comparatively light in weight and possess relatively great mechanical strength.

With these and other ob ects in view, my invention will be more fully described, illustrated in the drawings, in the several views of which corresponding numerals indicate like parts, and then particularly pointed out in the claims.

In the drawings, Figure 1 is a sectional view, parts being broken away, ofa bearing end of a motor and an Oll ring, constructed in accordance with my invention, disposed in position upon theshaft of the motor; Fig. 2 is a side elevation of an 011 ring embodying my lnvention, and Fig. 8 is a diametral sectional view of the ring shown in Fig. 2.

In practising my invention, I may construct an oil ring by employlng a moldable composition comprising acommi nuted material mixed with a suitable binden The Specification of Letters Patent. Patented July 12, Application filed September 3, 1919. Serial No. 321,495. r

binder and comminuted material may be disposed in a mold, and reinforcing strands of fibrous material may be disposed in the composition and heat and pressure be applied thereto to compact the material and to harden the binder.

In Figs. 2 and 3 is shown an oil ring 1 constructed in accordance with my invention. The oil ring may be constructed by employing a comminuted material, such as wood flour, which maybe mixed with a phenolic condensation product, in a dry or powdered form. A suitable quantity of such a mixture may be disposed in -a mold, and strands 2 of fibrous material, such as cord, may be disposed in the material to act as a reinforcing body. The material may be subjected to heat and pressure to compact it and to first soften the phenolic condensation product and to then harden it.

Although an article formed of a comminuted material, such as Wood flour, mixed with abinder, such as phenolic condensation product, is somewhat brittle in character, the reinforcing strands I employ materially increase the mechanical strength of the resulting product and obviate the danger of the rings being broken when subjected to shocks. The material is relatively inexpensive and insures a product which is light in weight and practically unaffected by chemicals or moisture.

Furthermore, the oil rings, constructed as above described, possess exceptionally durable wearing qualities which may be compared favorably with metals which are relatively expensive and diiiicult to handle. The wood flour may be the predominant portion of thetotal quantity of material employed, but the proportions of wood flour and the phenolic condensation. product may be varied rather widely. However, I have found that approximately 50% of the total quantity of material should be a binding agent, such as a phenoliccondensation product.

Although I have specifically described oil rings which may be constructed in accordance with my invention, it is obvious that minorchanges may be made in their construction without departing from" the spirit of my invention, and I desire, therefore, that no limitations shall be imposed except such as are indicated in the appended claims.

I claim as my invention 1. An oil ring comprising a eomminuted material" associated With a hardened binder and reinforcing strands of fibrous material disposed therein. 7

2. An oil ring comprising a comminuted lmaterial associated With a hardened phenolic condensation product and reinforcing strands of fibrous material disposed therein.

3. An oil ring comprising Wood flour assoeiated With a hardened binder and reinforcing strands of fibrous material disposed therein.

4. A molded oil ring comprising a comminuted material associated with a hardened binder and reinforcing strands of fibrous material disposed therein. I

5. A molded oil ring comprising wood 'flour associated With a hardened phenolic condensation product and reinforcing Windmgs of cord disposed therein.

In testimony whereof I have hereunto subscribed my name this 25th" day of Aug. 1919.

WILLARD H. KEMPToN; 

